2010 Mercury Mariner cat

Driver’s seat position sensor
The driver’s seat position sensor allows your Personal Safety System™ to
tailor the deployment level of the driver dual-stage airbag based on seat
position. The system is designed to help protect smaller drivers sitting
close to the driver airbag by providing a lower airbag output level.
Front passenger sensing system
For airbags to do their job they must inflate with great force, and this
force can pose a potentially deadly risk to occupants that are very close
to the airbag when it begins to inflate. For some occupants, like infants
in rear-facing child seats, this occurs because they are initially sitting
very close to the airbag. For other occupants, this occurs when the
occupant is not properly restrained by safety belts or child safety seats
and they move forward during pre-crash braking. The most effective way
to reduce the risk of unnecessary injuries is to make sure all occupants
are properly restrained. Accident statistics suggest that children are
much safer when properly restrained in the rear seating positions than in
the front.
WARNING:Air bags can kill or injure a child in a child seat.
NEVERplace a rear-facing child seat in front of an active air
bag. If you must use a forward-facing child seat in the front seat, move
the seat all the way back.
WARNING:When possible, all children 12 years old and under
should be properly restrained in a rear seating position.
The front passenger sensing system can automatically turn off the
passenger front airbag. The system is designed to help protect small
(child size) occupants from airbag deployments when they are
improperly seated or restrained in the front passenger seat contrary to
proper child-seating or restraint usage recommendations. Even with this
technology, parents areSTRONGLYencouraged to always properly
restrain children in the rear seat. The sensor also turns off the passenger
front airbag and passenger seat-mounted side airbag when the passenger
seat is empty.
When the front passenger seat is occupied and the sensing system has
turned off the passenger’s frontal airbag, the “pass airbag off” indicator
will light and stay lit to remind you that the front passenger frontal
airbag is off. SeeFront passenger sensing systemin the airbags section
of this chapter.
Seating and Safety Restraints
125
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)

Front safety belt usage sensors
The front safety belt usage sensors detect whether or not the driver and
front outboard passenger safety belts are fastened. This information
allows your Personal Safety System™ to tailor the airbag deployment
and safety belt pretensioner activation depending upon safety belt usage.
Refer toSafety restraintssection in this chapter.
Front safety belt pretensioners
The safety belt pretensioners at the front outboard seating positions are
designed to tighten the safety belts firmly against the occupant’s body
during frontal collisions, and in side collisions and rollovers. This helps
increase the effectiveness of the safety belts. In frontal collisions, the
safety belt pretensioners can be activated alone or, if the collision is of
sufficient severity, together with the front airbags.
Safety belt energy management retractors
The front and rear outboard safety belt energy management retractors
allow webbing to be pulled out of the retractor in a gradual and
controlled manner in response to the occupant’s forward momentum.
This helps reduce the risk of force-related injuries to the occupant’s
chest by limiting the load on the occupant. Refer toEnergy
management featurein this chapter.
Determining if the Personal Safety System™ is operational
The Personal Safety System™ uses a warning light in the instrument
cluster or a back-up tone to indicate the condition of the system. Refer
to theWarning lights and chimessection in theInstrument Cluster
chapter. Routine maintenance of the Personal Safety System™ is not
required.
The Restraints control module (RCM) monitors its own internal circuits
and the circuits for the airbag supplemental restraints, crash sensor(s),
safety belt pretensioners, front safety belt buckle sensors, driver seat
position sensor, and front passenger sensing system. In addition, the
RCM also monitors the restraints warning light in the instrument cluster.
A difficulty with the system is indicated by one or more of the following.
•The warning light will either flash or stay lit.
•The warning light will not illuminate immediately after ignition is
turned on.
•A series of five beeps will be heard. The tone pattern will repeat
periodically until the problem and warning light are repaired.
Seating and Safety Restraints
126
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)

•Grasp the shoulder portion and
pull downward until the entire
belt is pulled out.
•Allow the belt to retract. As the belt retracts, you will hear a clicking
sound. This indicates the safety belt is now in the automatic locking
mode.
How to disengage the automatic locking mode
Disconnect the combination lap/shoulder belt and allow it to retract
completely to disengage the automatic locking mode and activate the
vehicle sensitive (emergency) locking mode.
WARNING:After any vehicle collision, the safety belt systems
at all seating positions (except the driver position, which doesn’t
have this feature) must be checked by an authorized dealer to verify
that the automatic locking retractor feature for child seats is still
functioning properly. In addition, all safety belts should be checked for
proper function.
WARNING:BELT AND RETRACTOR ASSEMBLY MUST BE
REPLACED if the safety belt assembly “automatic locking
retractor” feature or any other safety belt function is not operating
properly when checked by an authorized dealer. Failure to replace the
Belt and Retractor assembly could increase the risk of injury in
collisions.
Seating and Safety Restraints
130
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)

Safety belt extension assembly
If the safety belt is too short when fully extended,a9inch(23cm)or
12 inch (31 cm) safety belt extension assembly can be added (part
numbers 611C22–A and 611C22–B respectively). These assemblies can
be obtained from an authorized dealer.
Use only extensions manufactured by the same supplier as the safety
belt. Manufacturer identification is located at the end of the webbing on
the label. Also, use the safety belt extension only if the safety belt is too
short for you when fully extended.
WARNING:Do not use extensions to change the fit of the
shoulder belt across the torso.
Safety belt warning light and indicator chime
The safety belt warning light illuminates in the instrument cluster and a
chime sounds to remind the occupants to fasten their safety belts.
Conditions of operation
If... Then...
The driver’s safety belt is not
buckled before the ignition
switch is turned to the on
position...The safety belt warning light
illuminates 1 minute and the warning
chime sounds 6 seconds.
The driver’s safety belt is
buckled while the indicator
light is illuminated and the
warning chime is sounding...The safety belt warning light and
warning chime turn off.
The driver’s safety belt is
buckled before the ignition
switch is turned to the on
position...The safety belt warning light and
indicator chime remain off.
Belt-Minder
The Belt-Minder
feature is a supplemental warning to the safety belt
warning function. This feature provides additional reminders by
intermittently sounding a chime and illuminating the safety belt warning
lamp in the instrument cluster when the driver’s and front passenger’s
safety belt is unbuckled.
Seating and Safety Restraints
132
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)

WARNING:Never place your arm over the airbag module as a
deploying airbag can result in serious arm fractures or other
injuries.
To properly position yourself away from the airbag:
•Move your seat to the rear as far as you can while still reaching the
pedals comfortably.
•Recline the seat slightly one or two degrees from the upright position.
WARNING:Do not put anything on or over the airbag module.
Placing objects on or over the airbag inflation area may cause
those objects to be propelled by the airbag into your face and torso
causing serious injury.
WARNING:Do not attempt to service, repair, or modify the
airbag supplemental restraint systems or its fuses. Contact your
authorized dealer as soon as possible.
WARNING:Modifications to the front end of the vehicle,
including frame, bumper, front end body structure, tow hooks
and B-pillar surrounding parts may affect the performance of the
airbag sensors increasing the risk of injury. Do not modify the front
end of the vehicle.
WARNING:Additional equipment may affect the performance of
the airbag sensors increasing the risk of injury.
Seating and Safety Restraints
138
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)

The airbags inflate and deflate
rapidly upon activation. After airbag
deployment, it is normal to notice a
smoke-like, powdery residue or
smell the burnt propellant. This may
consist of cornstarch, talcum
powder or sodium compounds which
may irritate the skin and eyes, but
none of the residue is toxic.
While the SRS is designed to help
reduce serious injuries, contact with
a deploying airbag may also cause
abrasions, swelling or temporary
hearing loss. Because airbags must
inflate rapidly and with considerable
force, there is the risk of death or
serious injuries such as fractures, facial and eye injuries or internal
injuries, particularly to occupants who are not properly restrained or are
otherwise out of position at the time of airbag deployment. It is
extremely important that occupants be properly restrained as far away
from the airbag module as possible while maintaining vehicle control.
The SRS consists of:
•driver and passenger airbag modules (which include the inflators and
airbags).
•seat-mounted side airbags. Refer toSeat-mounted side airbag system
later in this chapter
•Safety Canopy
System. Refer toSafety Canopy
Systemlater in this
chapter.
•one or more impact and safing sensors.
•Safety belt pretensioners
•a readiness light and tone.
•diagnostic module.
•and the electrical wiring which connects the components.
•Front passenger sensing system. Refer toFront passenger sensing
systemlater in this chapter.
•“Passenger airbag off” or “pass airbag off” indicator lamp. Refer to
Front passenger sensing systemlater in this chapter.
Seating and Safety Restraints
140
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)

The front passenger sensing system
uses apassenger airbag offor
pass airbag offindicator which will
illuminate and stay lit to remind you
that the front passenger frontal airbag is off. The indicator lamp is
located in the center stack of the instrument panel just above the air
vents.
Note:The indicator lamp will illuminate for a short period of time when
the ignition is turned to the on position to confirm it is functional.
When the front passenger seat is not occupied (empty seat) or in the
event that the front passenger frontal airbag is enabled (may inflate), the
indicator lamp will be unlit.
The front passenger sensing system is designed to disable (will not
inflate) the front passenger’s frontal airbag when a rear facing infant
seat, a forward-facing child restraint, or a booster seat is detected.
•When the front passenger sensing system disables (will not inflate)
the front passenger frontal airbag, the indicator lamp will illuminate
and stay lit to remind you that the front passenger frontal airbag is
disabled.
•If the child restraint has been installed and the indicator lamp is not
lit, then turn the vehicle off, remove the child restraint from the
vehicle and reinstall the restraint following the child restraint
manufacturer’s instructions.
The front passenger sensing system is designed to enable (may inflate)
the front passenger’s frontal airbag anytime the system senses that a
person of adult size is sitting properly in the front passenger seat.
•When the front passenger sensing system enables the front passenger
frontal airbag (may inflate), the indicator will be unlit and stay unlit.
If a person of adult size is sitting in the front passenger’s seat, but the
passenger airbag offorpass airbag offindicator lamp is lit, it is
possible that the person isn’t sitting properly in the seat. If this happens:
•Turn the vehicle off and ask the person to place the seatback in the
full upright position.
•Have the person sit upright in the seat, centered on the seat cushion,
with the person’s legs comfortably extended.
Seating and Safety Restraints
142
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)

•Restart the vehicle and have the person remain in this position for
about two minutes. This will allow the system to detect that person
and enable the passenger’s frontal airbag.
•If the indicator lamp remains lit even after this, the person should be
advised to ride in the rear seat.
OccupantPass Airbag Off
Indicator LampPassenger Airbag
Empty seat Unlit Disabled
Small child in child
safety seat or boosterLit Disabled
Small child with safety
belt buckled or
unbuckledLit Disabled
Adult Unlit Enabled
WARNING:Even with Advanced Restraints Systems, children
12 and under should be properly restrained in a rear seating
position.
After all occupants have adjusted their seats and put on safety belts, it’s
very important that they continue to sit properly. A properly seated
occupant sits upright, leaning against the seat back, and centered on the
seat cushion, with their feet comfortably extended on the floor. Sitting
improperly can increase the chance of injury in a crash event. For
example, if an occupant slouches, lies down, turns sideways, sits forward,
leans forward or sideways, or puts one or both feet up, the chance of
injury during a crash is greatly increased.
WARNING:Sitting improperly out of position or with the seat
back reclined too far can take off weight from the seat cushion
and affect the decision of the front passenger sensing system, resulting
in serious injury or death in a crash.
Always sit upright against your seatback, with your feet on the floor.
Seating and Safety Restraints
143
2010 Mariner(mrn)
Owners Guide, 2nd Printing
USA(fus)